Polymerization temperature test element
US7445440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2003 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | May 30, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7532
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A polymerization temperature test element is provided for a polymerization device of the type, in particular, for polymerizing dental products. The polymerization temperature test element includes a base element and a receipt region centrally disposed on the base element and operable to receive the mass to be polymerized. The energy source of the polymerization device irradiates the mass to be polymerized with one or both of light radiation and thermal radiation to effect polymerization of the mass and the base element and the receipt region are configured so as to be subjected to the respective light and thermal radiation emitted by the energy source. Accordingly, the polymerization temperature test element provides an indication, via color-temperature indicators which change color or brightness at discrete temperatures, that a target polymerization temperature has been reached during irradiation of the mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.